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Finding the Fourth Proportional to 552,815.91, 762,504.20 and 338,061.63

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Solution

The fourth proportional to 552,815.91, 762,504.20 and 338,061.63 is: 466,291.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,815.91 : 762,504.20 = 338,061.63 : x
  2. Step 2: Convert to fraction form
    552,815.91/762,504.20 = 338,061.63/x
  3. Step 3: Cross multiply
    552,815.91x = 762,504.20 × 338,061.63
  4. Step 4: Simplify right side
    552,815.91x = 257,773,411,043.54
  5. Step 5: Solve for x
    x = 257,773,411,043.54/552,815.91
  6. Step 6: Final answer
    x = 466,291.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.